Ounces to Grams
Convert ounces to grams with a calculator and a lookup table. The ratio is 28.35, so 1 oz = 28.35 g; examples and the reverse direction included.
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Ounces to grams: the relationship and formula
Going from ounces to grams means scaling the number by 28.34952313. A quantity of 1 oz therefore shows up as 28.34952313 g in the widget above.
If an amount is already in grams, divide it by 28.34952313 to get ounces; one gram is 0.035273962 ounces.
Common ounces-to-grams values
Each of the 12 rows pairs an amount in ounces with its equivalent in grams. Scale up or down by powers of ten, since the ratio 28.34952313 does not change.
| Ounces (oz) | Grams (g) |
|---|---|
| 0.1 | 2.834952313 |
| 1 | 28.34952313 |
| 2.5 | 70.87380781 |
| 4 | 113.3980925 |
| 12 | 340.1942775 |
| 30 | 850.4856937 |
| 60 | 1,700.971388 |
| 90 | 2,551.457081 |
| 180 | 5,102.914163 |
| 360 | 10,205.828325 |
| 720 | 20,411.65665 |
| 1,500 | 42,524.284687 |
The converter formats numbers the same way, which means the g column above is what you would see after typing the oz value into the widget.
Step by step: oz to g
Suppose a quantity is 8.5 ounces. Scaling it by 28.34952313 gives 240.9709466 grams.
A second amount, 0.95 ounces, becomes 26.93204697 grams. Converting that result in the opposite direction recovers about 0.95 oz.
Example 3. Starting from the other unit, 1,200 g is 42.32875434 oz, since 1 g = 0.035273962 oz.
Reverse direction (g to oz)
If the amount you have is in grams, go to Grams to Ounces. Here 1 g = 0.035273962 oz, and the layout mirrors this page.
Any other pairing is available in the Weight & Mass Converter, built on the same conversion function as this page.
Related conversions
Related pages with their own tables, examples and formulas:
Frequently asked questions
One ounce equals how many grams?
Each ounce corresponds to 28.34952313 grams, which means 283.4952313 grams for 10 ounces and 2,834.952313 grams for 100 ounces.
How many ounces are in one gram?
1 g = 0.035273962 oz. The reverse ratio is the reciprocal of 28.34952313, so 10 g comes to 0.35273962 oz.
2.4 ounces equals how many grams?
Multiply 2.4 by 28.34952313 and the answer is 68.0388555 g.
Will the g figure be rounded?
Calculation uses ordinary floating-point numbers, then the display is trimmed: 10 significant digits for values from 1 to 1,000, 8 for values below 1, and up to 6 decimals above 1,000. For this pair, 0.123456789 oz gives 3.499941095 g and 1,234.5678 oz gives 34,999.408395 g.
What calculation sits behind oz to g?
The unit table gives ounces and grams each a multiplier against a common reference unit. Dividing one multiplier by the other leaves 28.34952313, which is applied to whatever number is entered.
How do I convert grams back to ounces?
The page titled "Grams to Ounces" covers it, or you can press the swap button in the widget above. For this direction multiply by 0.035273962, or equivalently divide by 28.34952313. As a check, 25 g comes to 0.88184905 oz.
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